docs: def create(self, arr, meta_data={}, **kwargs):
          '''
          itype.create(dataobj) yields an image of the given image type itype that represents the
            given data object dataobj.
          itype.create(dataobj, meta_data) uses the given meta/header data to create the image.
  
          Any number of keyword arguments may also be appended to the call; these are merged into the
          meta_data argument.
          '''
          return self.to_image(arr, hdat=pimms.merge(meta_data, kwargs))